﻿// this is the invalid key class.
// Copyright (C) 2007  Lex Y. Li
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

using Borland.Studio.ToolsAPI;

namespace Lextm.BagPlug.TypingSpeeder
{
	/// <summary>
	/// InvalidKey class.
	/// </summary>
	/// <remarks>It is part of the special cases pattern.</remarks>
	public class InvalidKey : IKey
	{
		private InvalidKey()		{}
		
		private static InvalidKey instance;
		
		public static InvalidKey Instance {
			get {
				lock(typeof(InvalidKey)) {
					if (instance == null) {
						instance = new InvalidKey();
					}
				}
				return instance;
			}
		}
		/// <summary>
		/// Accepts an editor.
		/// </summary>
		/// <param name="editor">Editor</param>
		public void Accept(IOTASourceEditor editor) {
			Lextm.Diagnostics.LoggingService.Debug("This is an invalid key");
		}
	}
}
